Improvement in carriage-jacks



UNITED STATES PATENT OFFICE.

AUSTIN W. FIELD, 'OF VERGENNES, VERMONT.

IMPROVEMENT IN CARRIAGE-JACKS.

Specification forming part of Letters Patent No. 47,408, dated April Q5,1865.

To all whom it may concern:

Beit known that I, AUSTIN W. FIELD, of Vergennes, in the county ofAddison and State of Vermont, have invented a new and ImprovedCarriage-Jack, and l do hereby declare that the following is a full,clear, and exact description thereof, which will enable those skilled inthe art to make and use. the same, reference being had to theaccompanying drawings, forming part of this specification, in which-Figure l is an edge view of my invention; Fig. 2, a side view of thesame.

Similar letters of reference indicate corre.- sponding parts.

This invention consists iu the employment or use ot' `two parallelslides titted in a suitable stock or standard and having a lever placedbetween their upper ends, all being arranged in such a manner that thedevice may be readily applied to axles of any height and the latterelevated and secured in such position with the greatest facility, toenable the wheels to clear the ground or tloor, so that they may beremoved from and replaced on the axle for lubricat ing purposes.

A represents a stock or standard, which may be construeted of a solidpiece of wood ot any proper dimensions, and having a groove, a, made intwo opposite sides of it to receive metal sliding bars B B, which areallowed to work freely in the grooves and are connected or held inposition near their lower ends by a screw, C, which passes through avertical slo, b, made in the stock or standard and extending nearly thewhole length of the same, (sce Fig. 2,) in which a greater portionot'the slot is shown by dotted lines.

D represents a lever,l which is fitted on a fulcrum-rod, c, passingthrough the upper parts ofthe sliding bars B B. The portion of thislever which encompasses ox isimmediately around the fulcrum-rod c ismade wider or larger than the other portion, being nearly of circularform, as shown at d in Fig. 2, and this portion d is curved down fromthe other portion and is provided with a notch, e, to form a lip orbearing-surface for the axle to bear or rest upon.

The sliding bars B B are perforated with holes f, at a suitable distanceapart, and a hole of the same size is Inade through the stock orstandard to admit of a pin, E, passing through the holes in B andthrough the stock or standard. `By this means the bars B B may be raisedand supported at different heights.

The stock or standard A is provided with a metal base or foot, F,secured to it by screws or bolts.

The implement is used as follows: The i'oot or base F should be placedas near under the axle tobe raised as may be convenient, and4 thesliding bars B B are raised so that their tops will be a short distanceabove the under side or bottoni ofthe axle, the bars being then securedin position by thepin E. The lip of the notch is then adjusted under theaxle and the outer part ot' said lever depressed, which causes the axleto be raised, the latter resting on the ilat or plane portion a* ot' thelever directly over its fulcrumrod c, while the larger arm of the samebears against the stock or standard, as shown clearlyin Fig. 2.

The superiority of this invention consists in the great purchase thelever has, its lightness and compactness, together with its simplicity,the speed and facility with which it may be operated, the conveniencewith which it may be carried by peddlers and others who are constantlyon the road with Wagons, its durability, and the low price at which itmay be afforded.

I claim as new and desire to secure by Letters Patent- The stock orstandard A, perforated sliding bars B B, and lever D, in connection withthe pin E, all arranged `substantially as shown and described, to form anew and improved carri-a ge-j ack.

AUSTIN W. FIELD.

Vitnesses:

JOHN E. ROBERTS, GEO. C. CHASE.

